lune-org/lune ? reverse-engineered prompt

Build me a standalone Luau runtime CLI called Lune.

I want something I can use to write and run Luau scripts outside of Roblox, kind of like Node or Deno but for Luau. It should feel simple and friendly, with a small command line tool that can run scripts, give good errors, and come with useful built in support for things like files, networking, and standard input and output. Keep it fast and reliable, and make the default experience feel clean and easy to remember.

It should also feel familiar to Roblox developers, including a task scheduler that matches what they expect, and an optional helper for working with Roblox place and model files. If anything is unclear, look up current docs online and match the real Luau and Roblox behavior as closely as possible.